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Open CASCADE Technology Reference Manual 8.0.0
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Open CASCADE Technology Reference Manual 8.0.0
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Describe an expression used by its name (as constants or variables). A single reference is made to a NamedExpression in every Expression (i.e. a NamedExpression is shared). More...
#include <Expr_NamedExpression.hxx>
Public Member Functions | |
| const TCollection_AsciiString & | GetName () const |
| void | SetName (const TCollection_AsciiString &name) |
| bool | IsShareable () const override |
| Tests if <me> can be shared by one or more expressions or must be copied. This method redefines to a True value the GeneralExpression method. | |
| bool | IsIdentical (const occ::handle< Expr_GeneralExpression > &Other) const override |
| Tests if <me> and <Other> define the same expression. This method does not include any simplification before testing. | |
| TCollection_AsciiString | String () const override |
| returns a string representing <me> in a readable way. | |
 Public Member Functions inherited from Expr_GeneralExpression | |
| virtual int | NbSubExpressions () const =0 |
| Returns the number of sub-expressions contained in <me> ( >= 0) | |
| virtual const occ::handle< Expr_GeneralExpression > & | SubExpression (const int I) const =0 |
| Returns the -th sub-expression of <me> raises OutOfRange if > NbSubExpressions(me) | |
| virtual occ::handle< Expr_GeneralExpression > | Simplified () const =0 |
| Returns a GeneralExpression after replacement of NamedUnknowns by an associated expression and after values computation. | |
| virtual occ::handle< Expr_GeneralExpression > | ShallowSimplified () const =0 |
| Returns a GeneralExpression after a simplification of the arguments of <me>. | |
| virtual occ::handle< Expr_GeneralExpression > | Copy () const =0 |
| Returns a copy of <me> having the same unknowns and functions. | |
| virtual bool | ContainsUnknowns () const =0 |
| Tests if <me> contains NamedUnknowns. | |
| virtual bool | Contains (const occ::handle< Expr_GeneralExpression > &exp) const =0 |
| Tests if <exp> is contained in <me>. | |
| virtual bool | IsLinear () const =0 |
| Tests if <me> is linear on every NamedUnknown it contains. | |
| virtual occ::handle< Expr_GeneralExpression > | Derivative (const occ::handle< Expr_NamedUnknown > &X) const =0 |
| Returns the derivative on <X> unknown of <me> | |
| virtual occ::handle< Expr_GeneralExpression > | NDerivative (const occ::handle< Expr_NamedUnknown > &X, const int N) const |
| Returns the <N>-th derivative on <X> unknown of <me>. Raise OutOfRange if N <= 0. | |
| virtual void | Replace (const occ::handle< Expr_NamedUnknown > &var, const occ::handle< Expr_GeneralExpression > &with)=0 |
| Replaces all occurrences of with copies of <with> in <me>. Copies of <with> are made with the Copy() method. Raises InvalidOperand if <with> contains <me>. | |
| virtual double | Evaluate (const NCollection_Array1< occ::handle< Expr_NamedUnknown > > &vars, const NCollection_Array1< double > &vals) const =0 |
| Returns the value of <me> (as a Real) by replacement of <vars> by <vals>. Raises NotEvaluable if <me> contains NamedUnknown not in <vars> or NumericError if result cannot be computed. | |
| double | EvaluateNumeric () const |
| Returns the value of <me> (as a Real) by replacement of <vars> by <vals>. Raises NotEvaluable if <me> contains NamedUnknown not in <vars> or NumericError if result cannot be computed. | |
| Public Member Functions inherited from Standard_Transient | |
| Standard_Transient () | |
| Empty constructor. | |
| Standard_Transient (const Standard_Transient &) | |
| Copy constructor – does nothing. | |
| Standard_Transient & | operator= (const Standard_Transient &) |
| Assignment operator, needed to avoid copying reference counter. | |
| virtual | ~Standard_Transient ()=default |
| Destructor must be virtual. | |
| virtual const opencascade::handle< Standard_Type > & | DynamicType () const |
| Returns a type descriptor about this object. | |
| bool | IsInstance (const opencascade::handle< Standard_Type > &theType) const |
| Returns a true value if this is an instance of Type. | |
| bool | IsInstance (const char *const theTypeName) const |
| Returns a true value if this is an instance of TypeName. | |
| bool | IsKind (const opencascade::handle< Standard_Type > &theType) const |
| Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. | |
| bool | IsKind (const char *const theTypeName) const |
| Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. | |
| Standard_Transient * | This () const |
| Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. | |
| int | GetRefCount () const noexcept |
| Get the reference counter of this object. | |
| void | IncrementRefCounter () noexcept |
| Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations. | |
| int | DecrementRefCounter () noexcept |
| Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement. | |
| virtual void | Delete () const |
| Memory deallocator for transient classes. | |
Additional Inherited Members | |
| Public Types inherited from Standard_Transient | |
| typedef void | base_type |
| Returns a type descriptor about this object. | |
| Static Public Member Functions inherited from Standard_Transient | |
| static constexpr const char * | get_type_name () |
| Returns a type descriptor about this object. | |
| static const opencascade::handle< Standard_Type > & | get_type_descriptor () |
| Returns type descriptor of Standard_Transient class. | |
Describe an expression used by its name (as constants or variables). A single reference is made to a NamedExpression in every Expression (i.e. a NamedExpression is shared).
| const TCollection_AsciiString & Expr_NamedExpression::GetName | ( | ) | const |
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overridevirtual |
Tests if <me> and <Other> define the same expression. This method does not include any simplification before testing.
Implements Expr_GeneralExpression.
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overridevirtual |
Tests if <me> can be shared by one or more expressions or must be copied. This method redefines to a True value the GeneralExpression method.
Reimplemented from Expr_GeneralExpression.
| void Expr_NamedExpression::SetName | ( | const TCollection_AsciiString & | name | ) |
|
overridevirtual |
returns a string representing <me> in a readable way.
Implements Expr_GeneralExpression.
1.10.0